<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>学生列表</title>
  <style>
    table{
      width: 600px;
      text-align: center;
      margin: auto;
    }
    table,
    th,
    td{
      border: 1px solid#ccc;
      border-collapse: collapse;
    }
    caption{
      font-size: 18px;
      margin-bottom: 18px;
      font-weight: 700;
    }
    tr{
      height: 40px;
      cursor: pointer;
    }
    table tr:nth-child(1){
      background-color: #ddd;
    }
    table tr:nth(:first-child):hover{
      background-color: #a09b9b;
    }
  </style>
</head>
<body>
    <h2>学生信息</h2>
  <table>
    <caption>学生列表</caption>
    <tr>
      <th>序号</th>
      <th>姓名</th>
      <th>年龄</th>
      <th>性别</th>
      <th>家乡</th>
    </tr>

  <script>  
let students = [
    {name :'小明', age :18, gender:'男', hometown:'河北省'},
    {name :'小红', age :19, gender:'女', hometown:'河南省'},
    {name :'小刚', age :16, gender:'男', hometown:'山西省'},
    {name :'小丽', age :17, gender:'女', hometown:'山东省'},
]
 for (let i =0; i < students.length; i++){
  document.write(`
    <tr>
      <td>${i+1}</td>
      <td>${students[i].name}</td>
      <td>${students[i].age}</td>
      <td>${students[i].gender}</td>
      <td>${students[i].hometown}</td>
    </tr>
  `)
 }
  </script>
 </table>
</body>
</html>